I would add the case where your coworker is insecure, megalomaniac or an asshole, doing a pissing contest (not sure if there is a professional wording for that)
I would add the case where your coworker is insecure, megalomaniac or establishing the pecking order,
Rationale for the edit: Removed unnecessary profanity
Profanity according to the Oxford Advanced American Dictionary:
[uncountable] behavior that shows a lack of respect for God or holy things
[countable, usually plural] swear words, or religious words used in a way that shows a lack of respect for God or holy things
Aside from the fact that I would be curious how someone can be offended by my words from a religious perspective (I am genuinely curious, please note that I am French and an atheist) - I feel that smoothing out all the language and removing any such dirty words (well, at least dirty for some) is condescending.
The words in question are "asshole" and "pissing contest".
And then there was a very good comment (authoritatively deleted) which was playing on my words - but this you would not see as it is gone for good without any trial.
But this is my opinion - and I am curious about others.
Note: I will not go into an edit war which would turn out into a
pissing contest, sorry, pecking order I meant.